Yes when I joined didnt keep getting notifications to say 'doesn't match info on ac. -then when I tried to log in again with same info wouldn't let me -reset username password and had to reset screenname but wasnt easy as wouldnt recognise my security answer which I defo got right *
I had a similar problem about 2 years ago. The only person who can sort this is one of the Community team @Toby sorted mine for me... Send him a PM and he will look at it but maybe not till Monday now....
Veritas Numquam Perit